diff --git a/pyopencl/invoker.py b/pyopencl/invoker.py
index aab76cc42a24715d2af30a3cb9f7ef5524257962..57ab4b1f4ce29ebe9ddcd145e6efee8a3056038c 100644
--- a/pyopencl/invoker.py
+++ b/pyopencl/invoker.py
@@ -355,7 +355,7 @@ def _generate_enqueue_and_set_args_module(function_name,
 
 
 invoker_cache = WriteOncePersistentDict(
-        "pyopencl-invoker-cache-v6",
+        "pyopencl-invoker-cache-v7",
         key_builder=_NumpyTypesKeyBuilder())